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js method to achieve star rating effect_javascript skills

WBOYOriginal: 2016-05-16 16:04:531168browse

The example in this article describes how to achieve the star rating effect in js. Share it with everyone for your reference. The specific analysis is as follows:

Many websites have star rating effects like the picture below. Today we will see how to use js to achieve the rating effect.

Detailed explanation of the effect
1. When the mouse is moved over, the star lights up and the text below is displayed. When the mouse is moved out, the star will be gray and the text below will not be displayed.
2. Move the mouse over a star, and all the stars before it will light up.
3. Move the mouse to a star and click, the scoring results will be displayed.

The code is as follows

<!doctype html>
<html>
<head>
 <meta charset="gbk"> 
 <title>切换</title>
 <style>
.wrapper{width:300px; margin:10px auto; font:14px/1.5 arial;}
/*tab*/
#star{overflow:hidden;}
#star li{
float:left;
width:20px;
height:20px;
margin:2px;
display:inline;
color:#999;
font:bold 18px arial;
cursor:pointer
}
#star .act{
color:#c00
}
#star_word{
width:80px;
height:30px;
line-height:30px;
border:1px solid #ccc;
margin:10px;
text-align:center;
display:none
}
</style>
<script>
window.onload = function(){
 var star = document.getElementById("star");
 var star_li = star.getElementsByTagName("li");
 var star_word = document.getElementById("star_word");
 var result = document.getElementById("result");
 var i=0;
 var j=0;
 var len = star_li.length;
 var word = ['很差','差','一般',"好","很好"]
 for(i=0; i<len; i++){
 star_li[i].index = i;
 star_li[i].onmouseover = function(){
  star_word.style.display = "block";
  star_word.innerHTML = word[this.index];
  for(i=0; i<=this.index; i++){
   star_li[i].className = "act";
  }
 }
 star_li[i].onmouseout = function(){
  star_word.style.display = "none";
  for(i=0; i<len; i++){
   star_li[i].className = "";
  }
 }
 star_li[i].onclick = function(){
  result.innerHTML = (this.index+1)+"分";
 }
 }
}
</script>
</head>
<body>
<div class="wrapper">
打分结果 
<span id="result"></span>
<ul id="star">
<li>★</li>
<li>★</li>
<li>★</li>
<li>★</li>
<li>★</li>
</ul>
<div id="star_word">一般</div>
</div> 
</body> 
</html>

I hope this article will be helpful to everyone’s JavaScript programming design.

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